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It's time for our second Ask Microsoft Anything (AMA) about updating Secure Boot certificates on your Windows devices before they expire in June of 2026. If you've already bookmarked Secure Boot play...
Heather_Poulsen
Updated Feb 19, 2026
AMA
DennisJorgensen's avatar
DennisJorgensen
Copper Contributor
Feb 25, 2026

Completely same experience here. Can add that the GPO setting Enable Secure Boot Certificate Deployment also doesn't work on Windows Server 2025. Works on earlier Windows Servers.

mikemagarelli's avatar
mikemagarelli
Copper Contributor
Feb 26, 2026

Hopefully Arden_White​ or someone else on the Microsoft team can shed some light on this. 

  • Arden_White's avatar
    Arden_White
    Icon for Microsoft rankMicrosoft
    Feb 26, 2026

    Windows Server 2025 had a velocity holdback that made the updates disabled-by-default. This should be addressed in the March 10th updates.